This occurs when the Moon’s 29.5-day cycle doesn’t align exactly with the calendar month, allowing two full moons to fall ...

A study led by SETI Institute scientist Matija Ćuk proposes that Saturn’s bright rings and its largest moon, Titan, may have both originated in collisions among its moons. This study was accepted for ...

Of the solar system’s planets, Saturn piques the human imagination with its signature rings and impressive moon count of 274. But compelling new research reignites theories of an ancient collision ...

Add Yahoo as a preferred source to see more of our stories on Google. On January 11, 1787, the English astronomer Sir William Herschel discovered two moons at Uranus! Oberon and Titania were the first ...

Two of Saturn’s satellites — its largest and one of its weirdest — may owe their current forms and orbits to a two-moon pileup about 400 million years ago. A smashup between a doomed moon and the ...